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- Name: Helium
- Symbol: He
- Atomic Number: 2
- Atomic Weight: 4.002602 u
- Period: 1
- Group: 18
24 Helium Facts for Kids
- Helium is a chemical element on the periodic table.
- Helium is a non-toxic gas that is odorless, tasteless and colorless.
- Helium was first observed in the solar spectrum as a bright yellow line by both French astronomer Jules Janssen and English astronomer Norman Lockyer in 1868.
- Helium was first isolated by Scottish chemist William Ramsay and separately by Swedish chemists Per Teodor Cleve and Abraham Langlet in 1895.
- Helium is a gas at room temperature.
- The symbol for helium is He.
- The atomic number for helium is 2.
- The standard atomic weight of helium is 4.002602 u.
- Helium is in the noble gas group on the periodic table.
- Helium is a period 1 chemical element, which is the first row on the periodic table.
- Helium is a group 18 chemical element, which is the noble gases group.
- Helium two stable isotopes and they are helium-3 (3H) and helium-4 (4H).
- The melting point for helium is -457.96 °F (-272.20 °C).
- The boiling point for helium is -452.070 °F (268.928 °C).
- Helium is the 2nd lightest element on the periodic table.
- Helium is the 2nd most abundant element found in the universe.
- While helium is abundant throughout the universe, it’s considered rare on Earth.
- Most of the helium found on Earth was formed from radioactive decay.
- In 2014, the world produced 70.5 million pounds of helium.
- Out of the 70.5 million pounds of helium produced in 2014, 22.5 million pounds of it was used in cryogenic applications.
- In 2014, the United States of America was the largest producer of helium and accounts for 40% of the world supply.
- Because helium is lighter than air, it can give things lift, like a balloon or blimp.
- Helium dating is a processed used to determine the age of rocks and materials.
- Helium is named after Helios, the Greek Titan of the Sun.
Additional Resources on Helium
- Helium – RSC – Get more facts about helium on the Royal Society of Chemistry website.
- Helium – JLabs – Explore the Jefferson Science Education website to find out more about helium.
- Helium – Britannica – Discover more about the chemical element helium on the Britannica website.
- Helium Facts – Find more helium facts for kids on the Live Science website.